Spring-release surgical clip

ABSTRACT

A surgical clip includes first and second members. The first member includes a first wall and a second wall each defining a proximal curved portion. A base portion adjoins the first wall and the second wall and defines a locking feature. The second member is pivotably connected to the first member between the first and second walls. The second member includes a mating feature and defines a proximal curved portion. The mating feature of the second member is configured to selectively engage the locking feature of the first member to lock the first and second members into an approximated position. Movement of the proximal curved portions of the respective first and second members towards each other causes the mating feature of the second member to disengage from the locking feature of the first member to move the first and second members from the approximated position into an unapproximated position.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of and priority to U.S. ProvisionalPatent Application No. 62/504,828 filed May 11, 2017, the entiredisclosure of which is incorporated by reference herein.

BACKGROUND 1. Technical Field

The present disclosure generally relates to surgical clips, and moreparticularly, to spring-release surgical clips.

2. Background of Related Art

Surgical clips are used in a variety of surgical procedures. Forexample, surgical clips may be applied to a blood vessel during aprocedure. Once the clip is applied to the vessel, the clip terminatesthe flow of fluid through the vessel.

During and/or after some surgical procedures, the surgical clip formedaround a vessel must be removed therefrom. It is often difficult toremove the surgical clip from the vessel once the clip is formed aroundthe vessel. In many cases, specialized instrumentation is required toremove the formed clip from the vessel.

Accordingly, a need exists for a surgical clip that can be removedeasily from a vessel once formed around the vessel.

SUMMARY

According to an aspect of the present disclosure, a surgical clip isprovided including a first member and a second member. The first memberincludes a first wall and a second wall each defining a proximal curvedportion. A base portion adjoins the first wall and the second wall anddefines a locking feature. The second member pivotably connects to thefirst member between the first and second walls. The second memberincludes a mating feature and defines a proximal curved portion. Themating feature of the second member is configured to selectively engagethe locking feature of the first member to lock the first and secondmembers into an approximated position. Movement of the proximal curvedportions of the respective first and second members towards each othercauses the mating feature of the second member to disengage from thelocking feature of the first member to move the first and second membersfrom the approximated position into an unapproximated position.

In embodiments, the proximal curved portions of the first member maydefine an opening between the first and second walls.

In some embodiments, the proximal curved portion of the second membermay be movable at least partially into the opening defined by theproximal curved portions of the first and second walls of the firstmember.

In certain embodiments, the proximal curved portions of the respectivefirst and second members may be spaced away from each other when distalend portions of the first and second members are in the approximatedposition. The proximal curved portions of the respective first andsecond members may be moved toward each other when the distal endportions of the first and second members are in the unapproximatedposition.

In embodiments, the mating feature may be a barb defined at a distal endportion of the second member.

In some embodiments, the locking feature may be a slot defined throughthe base portion at a distal end portion of the first member.

In certain embodiments, movement of distal end portions of the first andsecond members toward each other may cause the barb to flex inwardlyfrom a rest position to a compressed position within the slot.

In embodiments, continued movement of the distal end portions of thefirst and second members toward each other may cause the barb to movethrough the slot and flex outwardly from the compressed position to alocked position such that the first member and the second member arelocked into the approximated position.

In some embodiments, the first wall may define a first recess and thesecond wall may define a second recess that is symmetrically opposed tothe first recess.

In certain embodiments, the second member may define a firstprotuberance extending from a first surface thereof and a secondprotuberance extending from a second surface thereof that issymmetrically opposed to the first protuberance. The first and secondprotuberances of the second member may be configured to selectivelyengage the first and second recesses of the first member. The first andsecond protuberances of the second member may be configured toselectively engage a first jaw member of a surgical clip applier.

In embodiments, the first member may define a first protuberanceextending from the first wall thereof and a second protuberanceextending from the second wall thereof that is symmetrically opposed tothe first protuberance. The first and second protuberances of the firstmember may be configured to selectively engage a second jaw member ofthe surgical clip applier.

In some embodiments, the first and second jaw members of the surgicalclip applier may be configured to compress the proximal curved portionsof the respective first and second members towards each other todisengage the mating feature of the second member from the lockingfeature of the first member to move the first and second members fromthe approximated position into the unapproximated position.

In certain embodiments, the surgical clip may be formed from a materialselected from the group consisting of polymer and metal.

In embodiments, each of the first and second walls may include a flangeportion extending from an outer surface thereof. The flange portions ofthe respective first and second walls may be configured to retain apivot pin therein.

In some embodiments, the pivot pin may be disposed through the firstmember and the second member to pivotably connect the first member tothe second member.

In certain embodiments, the base portion, the first wall, and the secondwall may define a cavity within the first member. The cavity of thefirst member may be configured to at least partially receive the secondmember.

In embodiments, a distal end portion of the second member may define afirst axis and the proximal curved portion of the second member maydefine a second axis. The first axis may be oriented at an angle fromabout 90 degrees to about 170 degrees from the second axis.

In some embodiments, a distal end portion of the first member may definea first axis and the proximal curved portions of the first member mayeach define a second axis. The first axis may be oriented at an anglefrom about 90 degrees to about 150 degrees from each of the second axes.

In certain embodiments, a distal end portion of each of the first andsecond members may have a curved profile and may define a radius ofcurvature.

In embodiments, the surgical clip may be formed from a biocompatiblematerial.

BRIEF DESCRIPTION OF DRAWINGS

Objects and features of the present disclosure will become apparent tothose of ordinary skill in the art when descriptions thereof are readwith reference to the accompanying drawings, of which:

FIG. 1 is a perspective view of a prior art surgical clip applier foruse with surgical clips of the present disclosure;

FIG. 2 is a perspective view of a surgical clip for use with thesurgical clip applier of FIG. 1, shown in an open or unapproximatedposition;

FIG. 3 is a detail view of a mating feature of the surgical clip of FIG.2, shown frictionally engaging a locking feature of the surgical clip ofFIG. 2;

FIG. 4 is a perspective view of the surgical clip of FIG. 2, shown in aclosed or approximated position;

FIG. 5 is a cross-sectional, perspective view of the surgical clip ofFIG. 2, as taken along line “5-5” of FIG. 4;

FIG. 6A is a side view of the surgical clip of FIG. 2 in the closed orapproximated position;

FIG. 6B is a side view of the surgical clip of FIG. 2 in an outwardlyflexed position as a compressive force “C” is applied to the ends offirst and second members of the surgical clip of FIG. 2;

FIG. 6C is a side view of the surgical clip of FIG. 2 in the open orunapproximated position as the mating feature of the second member isinitially released from the locking feature of the first member;

FIG. 7A is a partial, perspective view of a distal end of anotherembodiment of a surgical clip in accordance with the present disclosure;

FIG. 7B is partial, perspective view of a distal end of a first memberof the surgical clip of FIG. 7A; and

FIG. 7C is a partial, perspective view of a distal end of a secondmember of the surgical clip of FIG. 7A.

DETAILED DESCRIPTION

Embodiments of the present surgical clips will now be described indetail with reference to the drawings, in which like reference numeralsdesignate identical or corresponding elements in each of the severalviews. In the following description, well-known functions orconstructions are not described in detail to avoid obscuring the presentdisclosure in unnecessary detail. As used herein, the term “distal,” asis conventional, will refer to that portion of the instrument,apparatus, device or component thereof which is farther from the user orcloser to the patient while, the term “proximal,” will refer to thatportion of the instrument, apparatus, device or component thereof whichis closer to the user or further from the patient.

The present disclosure relates to a spring-release surgical clip. Oncethe surgical clip is applied around, e.g., a vessel, the clip can beeasily removed without the need for specialized equipment orinstrumentation.

Referring initially to FIG. 1, a surgical clip applier in accordancewith the prior art is shown and generally designated as 100. Surgicalclip applier 100 includes a handle assembly 110, an elongated tubeassembly 120 projecting from handle assembly 110, and a pair of jawmembers 130 a and 130 b operably supported at a distal end portion ofthe elongated tube assembly 200. Handle assembly 110 includes a fixedhandle 112 and a squeezable trigger 114 pivotally attached to fixedhandle 112 at pivot shaft 116. A housing or barrel 118 is supported onfixed handle 112 and is configured to selectively and removably receivea proximal end of elongated tube assembly 120. At least one clip (notexplicitly shown) is loaded into jaw members 130, 130 b of surgical clipapplier 100. In operation, as trigger 114 of handle assembly 110 isactuated, a single surgical clip is fired and formed, e.g., around thevessel to be occluded.

For a more detailed disclosure of endoscopic clip appliers, referencemay be made to commonly-assigned U.S. Pat. Nos. 5,084,057 and 5,100,420to Green et al., U.S. Pat. No. 5,354,304 to Allen et al., U.S. Pat. No.5,607,436 to Pratt et al., U.S. Pat. No. 5,695,502 to Pier et al., andU.S. Pat. No. 8,894,665 to Sorrentino et al., the disclosures of whichare hereby incorporated by reference herein in their entirety.

Referring now to FIG. 2, a surgical clip in accordance with the presentdisclosure, is shown and generally designated as 200. Surgical clip 200generally includes a base or first member 210 and a clamping or secondmember 230 pivotally connected to first member 210.

First member 210 includes a distal end portion 210 a that generallydefines a first or longitudinal axis “Xa₁.” A proximal end portion 211of first member 210 defines a second axis “Xa₂” that may be oriented atan angle “α₁” (e.g., curved or flared) relative to the first axis “Xa₁”of first member 210. For example, angle “α₁” between axes “Xa₁ and “Xa₂”of first member 210 may be from about 90 degrees to about 150 degrees.

First member 210 includes a first wall 213 and a second wall 215. Firstwall 213 defines respective inner and outer surfaces 213 a, 213 b.Likewise, second wall 215 defines respective inner and outer surfaces215 a, 215 b. Inner surfaces 213 a, 215 a of respective first and secondwalls 213, 215 define a cavity 219 therebetween. A base portion or wall221 adjoins a lower portion of inner surfaces 213 a, 215 a of respectivefirst and second walls 213, 215 to form a bottom in cavity 219. Baseportion 221 includes an upper surface 221 a and a lower surface 221 b. Alocking feature or slot 223 is defined through respective upper andlower surfaces 221 a, 221 b of base portion 221 at a distal end portionof base portion 221. Proximal end portion 211 of first member 210defines an opening 225 between inner surfaces 213 a, 215 a of first andsecond walls 213, 215.

First member 210 defines first and second flange portions 227, 229extending from outer surfaces 213 b, 215 b of first and second walls213, 215. First and second flange portions 227, 229 are configured forretaining a cam element or pivot pin 240 therein to pivotally connectfirst and second members 210, 230, as will be described below.

Second member 230 is pivotably connected to first member 210 via pivotpin 240 and is configured to selectively engage with first member 210to, e.g., occlude, ligate, or otherwise clamp tissue therebetween.Second member 230 may define a dimension or width such that secondmember 230 can be received within cavity 219 of first member 210.

Second member 230 includes a distal end portion 230 a that generallydefines a first or longitudinal axis “Xb₁.” A proximal end portion 231of second member 230 defines a second axis “Xb₂” that may be oriented atan angle “α₂” (e.g., curved or flared) relative to the first axis “Xb₁”of second member 230. For example, the angle “α₂” between axes or planes“Xb₁” and “Xb₂” of second member 230 may be from about 90 degrees toabout 170 degrees. Second member 230 includes top and bottom surfaces233, 235. Bottom surface 235 of second member 230 includes a matingfeature or barb 237 extending therefrom configured to engage slot 223 offirst member 210 to selectively lock first and second members 210, 230together such that surgical clip 200 is locked into an approximatedposition, as will be more fully described below.

Pivot pin 240 pivotably connects first member 210 to second member 230and permits distal end portions (or proximal end portions) of first andsecond members 210, 230, relative to pivot pin 240, to move (e.g.,pivot) towards and away from each other between approximated (e.g.,closed) and unapproximated (e.g., open) positions. Specifically,movement of respective proximal end portions 211, 231 of first andsecond members 210, 230 creates a moment about pivot pin 240, whichpermits distal end portions 210 a, 230 a of first and second members210, 230 to pivot towards and away from each other.

In the unapproximated position, distal end portion 230 a of secondmember 230 is spaced away from distal end portion 210 a of first member210, and proximal end portion 231 of second member 230 is oriented atleast partially within opening 225 defined between first and secondwalls 213, 215 at proximal end portion 211 of first member 210.

With reference to FIGS. 3 and 4, movement of distal end portions 210 a,230 a of first and second members 210, 230 towards each other causesbarb 237 of second member 230 to snap-fit, frictionally, and/or slidablyengage slot 223 of first member 210 to lock first and second members210, 230 into the approximated position. Specifically, as distal endportions 210 a, 230 a of first and second members 210, 230 move towardeach other (e.g., from an open or spaced apart position), barb 237 ofsecond member 230 cams or slidably engages slot 223, causing barb 237 toflex inwardly, as indicated by arrow “I,” from a rest position (FIG. 2)to a compressed position (FIG. 3) with slot 223. Continued movement ofdistal end portions 210 a, 230 a of first and second members 210, 230toward each other causes barb 237 to overcome, e.g., move through slot223 and flex outwardly from the compressed position to a locked position(FIG. 4). In the locked position, barb 237 of second member 230 is incontact or abutment with lower surface 221 b of base portion 221 andfirst and second members 210, 230 are locked into the approximatedposition (FIGS. 4 and 5). As mentioned above, in the approximatedposition, second member 230 is disposed at least partially between firstand second walls 213, 215 and within cavity 219 of first member 210. Inaddition, in the approximated position, as shown in FIG. 4, proximal endportion 231 of second member 230 is spaced away from opening 225 definedbetween first and second walls 213, 215 at proximal end portion 211 offirst member 210.

With reference to FIGS. 5, 6A, 6B, and 6C, in order to move surgicalclip 200 from the approximated position to the unapproximated position(e.g., to remove a formed surgical clip 200 from a vessel), acompressive force, as indicated by arrows “C,” is applied to proximalend portions 211, 231 of respective first and second members 210, 230.The compressive force “C” causes proximal end portions 211, 231 to flextowards one another and creates a moment of first and second members210, 230 about pivot pin 240, which causes distal end portions 210 a,230 a of first and second members 210, 230 to flex away from one another(FIG. 6B) and correspondingly causes barb 237 of first member 230 tobend outwardly within slot 223 of first member 210, as indicated byarrow “O.” Continued application of compressive force “C” to proximalend portions 211, 231 of respective first and second members 210, 230causes barb 237 of second member 230 to disengage or release from slot223 of first member 210, such that first and second members 210, 230move into the unapproximated position (FIG. 6C). The compressive force“C” may cause the proximal end portion 231 of second member 230 toreturn at least partially within opening 225 defined between first andsecond walls 213, 215 at proximal end portion 211 of first member 210.

Thus, proximal end portions 211, 231 of respective first and secondmembers 210, 230 function as a spring-release arrangement to movesurgical clip 200 from the approximated position to the unapproximatedposition such that, advantageously, surgical clip 200 can be easilyremoved, e.g., from a vessel, without the need for specialized equipmentor instrumentation. For example, surgical clip 200 can be removed byapplying a compressive force “C” with simple forceps, graspers, orsurgical applier 100 to proximal end portions 211, 231 of respectivefirst and second members 210, 230.

In use, for example, a surgical clip 200 is loaded into jaws 130 a, 130b of surgical clip applier 100, e.g., in the unapproximated position.Initially, with jaws 130 a, 130 b engaging proximal end portions 211,231 of surgical clip 200, as trigger 114 of handle assembly 110 isactuated, proximal end portions 211, 231 are approximated and distal endportions 210 a, 230 a of surgical clip 200 are separated. With distalend portions 210 a, 230 a of surgical clip 200 in an open orunapproximated position, surgical clip 200 is placed on a vessel suchthat the vessel is disposed between distal end portions 210 a, 230 a.With the vessel disposed between distal end portions 210 a, 230 a,trigger 114 of handle assembly 110 is released to open and release jaws130 a, 130 b from the proximal end portions 211, 231 of surgical clip200, and jaws 130 a, 130 b are repositioned over distal end portions 210a, 230 a of surgical clip 200. Trigger 114 of handle assembly 110 isreactuated to close jaws 130 a, 130 b and approximate distal endportions 210 a, 230 a of surgical clip 200 onto the vessel. As distalend portions 210 a, 230 a of first and second members 210, 230 are movedtoward each other, barb 237 of second member 230 slidably and/orfrictionally engages slot 223 of first member 210 such that barb 237moves through slot 223 to lock first and second members 210, 230 intothe approximated position, as described above.

Surgical clip 200 may be removed from the vessel using surgical clipapplier 100, simple forceps, graspers, or the like, to apply a squeezingor compressive force “C” to proximal end portions 211, 231 of respectivefirst and second members 210, 230, as described above.

With reference to FIGS. 7A, 7B, and 7C, in accordance with anotherembodiment of the present disclosure, a surgical clip is shown andgenerally identified by reference numeral 300. Surgical clip 300includes a base or first member 310 and a clamping or second member 330pivotally connected to first member 310. Since surgical clip 300 issubstantially similar to surgical clip 200, surgical clip 300 will onlybe described as necessary to demonstrate apparent differencestherebetween.

First member 310 includes a first wall 313 and a second wall 315. Firstwall 313 defines respective inner and outer surfaces 313 a, 313 b.Likewise, second wall 315 defines respective inner and outer surfaces315 a, 315 b. Inner surfaces 313 a, 315 a of respective first and secondwalls 313, 315 define a cavity 319 therebetween. A base portion 321adjoins a lower portion of inner surfaces 313 a, 315 a of respectivefirst and second walls 313, 315 to form a bottom in cavity 319. Baseportion 321 includes an upper surface 321 a and a lower surface 321 b. Alocking feature or slot 323 is defined through respective upper andlower surfaces 321 a, 321 b of base portion 321 at a distal end portionof base portion 321.

A top edge or surface of first wall 313 defines a first recessed portion314. Likewise, a top edge or surface of second wall 315 defines a secondrecessed portion 316 that is symmetrically opposed to first recessedportion 314. First wall 313 includes a first protuberance or post 318extending outwardly from outer surface 313 b thereof. Likewise, secondwall 315 includes a second protuberance or post 320 extending outwardlyfrom outer surface 315 b that is symmetrically opposed to first post320. First and second posts 318, 320 of first member 310 are configuredto selectively engage recesses (not explicitly shown) formed in jawmember 130 a of surgical clip applier 100 for loading surgical clip 200into jaw members 130 a, 130 b of surgical clip applier 100.

Second member 330 is pivotably connected to first member 310 and isconfigured to selectively engage with first member 310 to, e.g.,occlude, ligate, or otherwise clamp tissue therebetween. Second member330 may define a dimension or width such that second member 330 can bereceived within cavity 319 of first member 310. Second member 230includes top and bottom surfaces 333, 335 and first and second sidesurfaces 340, 342. Bottom surface 335 of second member 330 includes amating feature or barb 337 extending therefrom configured to engage slot323 of first member 310 to selectively lock surgical clip 300 into anapproximated position.

Second member 330 includes a first protuberance or post 344 extendingfrom a distal end portion of first side surface 340 thereof, and asecond protuberance or post 346 extending from a distal end portion ofsecond side surface 342 thereof that is symmetrically opposed to firstpost 344. First and second posts 344, 346 of second member 330 areconfigured to selectively engage recesses (not explicitly shown) formedin jaw member 130 b of surgical clip applier 100 for loading surgicalclip 200 into jaw members 130 a, 130 b of surgical clip applier 100.

In use, as distal end portions of first and second members 310, 330 movetoward each other, slot 323 of first member 310 and barb 337 of secondmember 330 selectively engage with each other to selectively lock firstand second members 310, 330 together into the approximated position. Asdistal end portions of first and second members 310, 330 move into theapproximated position, first and second posts 344, 346 engage with firstand second recessed portions 314, 316 of first member 310 such that topsurface 333 of second member 330 is flush with top surfaces or edges offirst member 310 to reduce the overall profile or height of surgicalclip 300 when in the approximated position. As such, surgical clip 300may define a reduced profile in the approximated position for ease ofloading, e.g., in a surgical clip cartridge, a surgical clip applier,etc.

In embodiments, first post 344 of second member 330 may include aslotted portion or undercut (not explicitly shown) on a lower portionthereof. Likewise, second post 346 of second member 330 may include aslotted portion or undercut (not explicitly shown) on a lower portionthereof. Undercuts of respective first and second posts 344, 346 ofsecond member 330 are configured to selectively engage with respectivefirst and second recessed portions 314, 316 of first member 310. Inembodiments, undercuts of second member 330 and first and secondrecessed portions 314, 316 of first member 310 may have a snap-fit typeconnection with each other.

In embodiments, each of first members 210, 310 and second members 230,330 of respective surgical clips 200, 300 may define a radius ofcurvature (e.g., non-linear) and may be radiused in the same direction,or alternatively, in different directions. In some embodiments, proximalportions 231, 331 of second members 230, 330 may define a gooseneckconfiguration.

In embodiments, any clip described herein may be formed of abiocompatible material. In some embodiments, any clip described hereinmay be formed from a polymeric material such as plastics, liquid crystalpolymers, HDPE, polyglycolic acid, polyglycolid hydroxyacetic acid, etc.In certain embodiments, any clip described herein may be formed from ametal or metal alloy, such as titanium, titanium alloys, stainlesssteel, nickel chrome alloys, etc. In embodiments, any clip describedherein may be formed from a material that configures the clip to flexand/or exhibit spring type pivotal movement.

Persons skilled in the art will understand that the structures andmethods specifically described herein and shown in the accompanyingfigures are non-limiting exemplary embodiments, and that thedescription, disclosure, and figures should be construed merely asexemplary of particular embodiments. It is to be understood, therefore,that the present disclosure is not limited to the precise embodimentsdescribed, and that various other changes and modifications may beeffected by one skilled in the art without departing from the scope orspirit of the disclosure. Additionally, the elements and features shownor described in connection with certain embodiments may be combined withthe elements and features of certain other embodiments without departingfrom the scope of the present disclosure, and that such modificationsand variations are also included within the scope of the presentdisclosure. Accordingly, the subject matter of the present disclosure isnot limited by what has been particularly shown and described.

What is claimed is:
 1. A surgical clip, comprising: a first memberincluding: a first wall and a second wall each defining a proximalcurved portion; and a base portion adjoining the first wall and thesecond wall, the base portion defining a locking feature; and a secondmember pivotably connected to the first member between the first andsecond walls, the second member including a mating feature and defininga proximal curved portion; wherein the mating feature of the secondmember is configured to selectively engage the locking feature of thefirst member to lock the first and second members into an approximatedposition; and wherein movement of the proximal curved portions of therespective first and second members towards each other causes the matingfeature of the second member to disengage from the locking feature ofthe first member to move the first and second members from theapproximated position into an unapproximated position; and wherein themating feature is a barb defined at a distal end portion of the secondmember; and wherein the locking feature is a slot defined through thebase portion at a distal end portion of the first member; and whereinmovement of distal end portions of the first and second members towardeach other causes the barb to flex inwardly from a rest position to acompressed position within the slot.
 2. The surgical clip according toclaim 1, wherein the proximal curved portions of the first member definean opening between the first and second walls.
 3. The surgical clipaccording to claim 2, wherein the proximal curved portion of the secondmember is movable at least partially into the opening defined by theproximal curved portions of the first and second walls of the firstmember.
 4. The surgical clip according to claim 3, wherein the proximalcurved portions of the respective first and second members are spacedaway from each other when distal end portions of the first and secondmembers are in the approximated position, and wherein the proximalcurved portions of the respective first and second members are movedtoward each other when the distal end portions of the first and secondmembers are in the unapproximated position.
 5. The surgical clipaccording to claim 1, wherein continued movement of the distal endportions of the first and second members toward each other causes thebarb to move through the slot and flex outwardly from the compressedposition to a locked position such that the first member and the secondmember are locked into the approximated position.
 6. The surgical clipaccording to claim 1, wherein the first wall defines a first recess andthe second wall defines a second recess that is symmetrically opposed tothe first recess.
 7. The surgical clip according to claim 6, wherein thesecond member defines a first protuberance extending from a firstsurface thereof and a second protuberance extending from a secondsurface thereof that is symmetrically opposed to the first protuberance,the first and second protuberances of the second member configured toselectively engage the first and second recesses of the first member,the first and second protuberances of the second member configured toselectively engage a first jaw member of a surgical clip applier.
 8. Thesurgical clip according to claim 7, wherein the first member defines afirst protuberance extending from the first wall thereof and a secondprotuberance extending from the second wall thereof that issymmetrically opposed to the first protuberance, the first and secondprotuberances of the first member configured to selectively engage asecond jaw member of the surgical clip applier.
 9. The surgical clipaccording to claim 8, wherein the first and second jaw members of thesurgical clip applier are configured to compress the proximal curvedportions of the respective first and second members towards each otherto disengage the mating feature of the second member from the lockingfeature of the first member to move the first and second members fromthe approximated position into the unapproximated position.
 10. Thesurgical clip according to claim 1, wherein the surgical clip is formedfrom a material selected from the group consisting of polymer and metal.11. The surgical clip according to claim 1, wherein each of the firstand second walls includes a flange portion extending from an outersurface thereof, the flange portions of the respective first and secondwalls configured to retain a pivot pin therein.
 12. The surgical clipaccording to claim 11, wherein the pivot pin is disposed through thefirst member and the second member to pivotably connect the first memberto the second member.
 13. The surgical clip according to claim 1,wherein the base portion, the first wall, and the second wall define acavity within the first member, the cavity of the first memberconfigured to at least partially receive the second member.
 14. Thesurgical clip according to claim 1, wherein a distal end portion of thesecond member defines a first axis and the proximal curved portion ofthe second member defines a second axis, the first axis oriented at anangle from about 90 degrees to about 170 degrees from the second axis.15. The surgical clip according to claim 1, wherein a distal end portionof the first member defines a first axis and the proximal curvedportions of the first member each define a second axis, the first axisoriented at an angle from about 90 degrees to about 150 degrees fromeach of the second axes.
 16. The surgical clip according to claim 1,wherein a distal end portion of each of the first and second members hasa curved profile and defines a radius of curvature.
 17. The surgicalclip according to claim 1, wherein the surgical clip is formed from abiocompatible material.